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Reader Opinion: Fake science

The Dec. 10 and Dec. 13 climate change letters tell us we have to act now to stave off global warming.

I've been subscribing to "Science" and "Science News" for several years now, and have yet to see anything conclusive about man-made CO2 (carbon dioxide) as the real cause for climate change. I see "maybes," "possibilities," and sometimes contradictions, but nothing really solid.

1. The ratio of man-made CO2 to natural CO2 on Earth is about 1 to 2400. If a 12-ounce glass held Earth's CO2, man's portion is about two drops. How are those two drops going to jerk temperatures around to dangerous levels?

2. Recent findings show that some volcanoes are pumping a lot more CO2 than we thought. Mount Katla buried under a glacier in Iceland emits up to 24,000 tons CO2 per day.

It's possible many more subglacial volcanoes worldwide are dumping much more CO2 into the atmosphere than we thought.

3. There are 40,000 miles of volcanically active mid-ocean ridges of which we only mapped a tiny fraction; that's a real big thermal and CO2 output area we know little about.

4. Stratocumulus clouds forming off the coastlines can turn the global temperature up or down by a few degrees over a century of time, and the "climate models" cannot predict which way it will go. (July 2018 issue of "Science.)

5. Geo-engineering scientists working on blocking the sun's rays to cool the planet say that, "Even if we completely stopped carbon dioxide emissions today, earth will continue warming over the next several decades."

6. We had global warming about a thousand years ago (Medieval Warm Period)—yes, climate change is real. When has the climate ever been changeless?